Chemical News and Journal of Physical Science, Tom 113Chemical news office., 1916 |
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Strona 8
... oxidation . However , it is generally recognised that when ferrous iron is titrated with permanganate in hydro- fluoric acid solution the end - point is fleeting and the result high or worthless . Consequently , any procedure which ...
... oxidation . However , it is generally recognised that when ferrous iron is titrated with permanganate in hydro- fluoric acid solution the end - point is fleeting and the result high or worthless . Consequently , any procedure which ...
Strona 10
... oxide . TABLE VI . - Molybdic Oxide as Preventive . ( Iron and permanganate solutions the same as used in Series V. ) . Normality . HF . Solid MoO3 in excess . Iron ( grm . ) . Present . Found . ΙΟ 2 . 2.0 ΙΟ per litre . 4 . ΙΟ Nor ...
... oxide . TABLE VI . - Molybdic Oxide as Preventive . ( Iron and permanganate solutions the same as used in Series V. ) . Normality . HF . Solid MoO3 in excess . Iron ( grm . ) . Present . Found . ΙΟ 2 . 2.0 ΙΟ per litre . 4 . ΙΟ Nor ...
Strona 12
... oxidation of ethyl alcohol by means of nitric acid , in the course of which he prepared glyoxal and investigated its properties . He also did some useful work on the products of the combustion of gunpowder . Professor Debus was elected ...
... oxidation of ethyl alcohol by means of nitric acid , in the course of which he prepared glyoxal and investigated its properties . He also did some useful work on the products of the combustion of gunpowder . Professor Debus was elected ...
Strona 18
... oxidation of ferrous salts in the presence of hydrofluoric acid . However , the addition of boric acid makes the solution so much more stable that the oxidation is negligible in a moderate length of time . In Experi- ments 11 and 12 air ...
... oxidation of ferrous salts in the presence of hydrofluoric acid . However , the addition of boric acid makes the solution so much more stable that the oxidation is negligible in a moderate length of time . In Experi- ments 11 and 12 air ...
Strona 21
... oxide , NO . Second . - Methods of fixing nitrogen by means of electric furnaces or combustion where the energy of chemical combination is utilised , causing the nitrogen to combine with some substance with which there is a pronounced ...
... oxide , NO . Second . - Methods of fixing nitrogen by means of electric furnaces or combustion where the energy of chemical combination is utilised , causing the nitrogen to combine with some substance with which there is a pronounced ...
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Popularne fragmenty
Strona 115 - Earth, in the development of Life upon its surface, in the development of Society, of Government, of Manufactures, of Commerce, of Language, Literature, Science, Art, this same evolution of the simple into the complex, through successive differentiations, holds throughout. From the earliest traceable cosmical changes down to the latest results of civilization, we shall find that the transformation of the homogeneous into the heterogeneous, is that in which Progress essentially consists.
Strona 179 - German population has reached a point of general training and specialised equipment which it will take us two generations of hard and intelligently directed educational work to attain. It is that Germany possesses a national weapon of precision which must give her an enormous initial advantage in any and every contest depending upon disciplined and methodised intellect.
Strona 226 - Looking back to the times of the " father of chemistry and the brother of the Earl of Cork...
Strona 48 - Provided, that the addition of pure boiled or condensed grape must or pure crystallized cane or beet sugar or pure...
Strona 250 - I let up some solution of liver of sulphur to absorb the dephlogisticated air, after which only a small bubble of air remained unabsorbed, which certainly was not more than -j-^ of the bulk of the phlogisticated air let up into the tube ; so that if there is any part of the phlogisticated air of our atmosphere which differs from the rest and cannot be reduced to nitrous acid, we may safely conclude that it is not more than T^ part of the whole.
Strona 122 - Neither can much improvement arise from such speculations as the following, which are the themes suggested by the Vedant:. — In what manner is the soul absorbed into the deity? What relation does it bear to the divine essence? Nor will youths be fitted...
Strona 48 - Treasury, may from time to time prescribe; but in no case shall such wines to which water has been added be eligible for fortification under the provisions of this Act where the same, after fermentation and before fortification, have an alcoholic strength of less than five per centum of their volume.
Strona 48 - Sparkling wine is wine in which the after part of the fermentation is completed in the bottle, the sediment being disgorged and its place supplied by wine or sugar liquor, and which contains, in one hundred (100) cubic centimeters (20° C.), not less than twelve hundredths (0.12) gram of grape ash.
Strona 115 - Whether it be in the development of the Earth, in the development of Life upon its surface, in the development of Society, of Government, of Manufactures, of...
Strona 48 - ... and such sweet wine shall contain not less than four per centum of saccharine matter, which saccharine strength may be determined by testing with Balling's...